556756226 has 16 divisors (see below), whose sum is σ = 905110584. Its totient is φ = 255325824.

The previous prime is 556756223. The next prime is 556756241. The reversal of 556756226 is 622657655.

It can be written as a sum of positive squares in 4 ways, for example, as 434764201 + 121992025 = 20851^2 + 11045^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (556756223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64115 + ... + 72278.

Almost surely, 2^556756226 is an apocalyptic number.

556756226 is a deficient number, since it is larger than the sum of its proper divisors (348354358).

556756226 is a wasteful number, since it uses less digits than its factorization.

556756226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136565.

The product of its digits is 756000, while the sum is 44.

The square root of 556756226 is about 23595.6823592792. The cubic root of 556756226 is about 822.6624869067.

The spelling of 556756226 in words is "five hundred fifty-six million, seven hundred fifty-six thousand, two hundred twenty-six".